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package famtime.tm.kalender.presentation;

import java.util.Calendar;
import java.util.Date;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;
import org.primefaces.event.DateSelectEvent;
import org.primefaces.event.ScheduleEntryMoveEvent;
import org.primefaces.event.ScheduleEntryResizeEvent;
import org.primefaces.event.ScheduleEntrySelectEvent;
import org.primefaces.model.DefaultScheduleEvent;
import org.primefaces.model.DefaultScheduleModel;
import org.primefaces.model.LazyScheduleModel;
import org.primefaces.model.ScheduleEvent;
import org.primefaces.model.ScheduleModel;

public class ScheduleController {

        private ScheduleModel eventModel;
       
        private ScheduleModel lazyEventModel;

        private ScheduleEvent event = new DefaultScheduleEvent();

        public ScheduleController() {
                eventModel = new DefaultScheduleModel();
                eventModel.addEvent(new DefaultScheduleEvent("Champions League Match", previousDay8Pm(), previousDay11Pm()));
                eventModel.addEvent(new DefaultScheduleEvent("Birthday Party", today1Pm(), today6Pm()));
                eventModel.addEvent(new DefaultScheduleEvent("Breakfast at Tiffanys", nextDay9Am(), nextDay11Am()));
                eventModel.addEvent(new DefaultScheduleEvent("Plant the new garden stuff", theDayAfter3Pm(), fourDaysLater3pm()));
               
                lazyEventModel = new LazyScheduleModel() {
                       
                        @Override
                        public void loadEvents(Date start, Date end) {
                                clear();
                               
                                Date random = getRandomDate(start);
                                addEvent(new DefaultScheduleEvent("Lazy Event 1", random, random));
                               
                                random = getRandomDate(start);
                                addEvent(new DefaultScheduleEvent("Lazy Event 2", random, random));
                        }      
                };
        }
       
        public Date getRandomDate(Date base) {
                Calendar date = Calendar.getInstance();
                date.setTime(base);
                date.add(Calendar.DATE, ((int) (Math.random()*30)) + 1);        //set random day of month
               
                return date.getTime();
        }
       
        public Date getInitialDate() {
                Calendar calendar = Calendar.getInstance();
                calendar.set(calendar.get(Calendar.YEAR), Calendar.FEBRUARY, calendar.get(Calendar.DATE), 0, 0, 0);
               
                return calendar.getTime();
        }
       
        public ScheduleModel getEventModel() {
                return eventModel;
        }
       
        public ScheduleModel getLazyEventModel() {
                return lazyEventModel;
        }

        private Calendar today() {
                Calendar calendar = Calendar.getInstance();
                calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DATE), 0, 0, 0);

                return calendar;
        }
       
        private Date previousDay8Pm() 
        {
                Calendar t = (Calendar) today().clone();
                t.set(Calendar.AM_PM, Calendar.PM);
                t.set(Calendar.DATE, t.get(Calendar.DATE) - 1);
                t.set(Calendar.HOUR, 8);
               
                return t.getTime();
        }
       
        private Date previousDay11Pm() {
                Calendar t = (Calendar) today().clone();
                t.set(Calendar.AM_PM, Calendar.PM);
                t.set(Calendar.DATE, t.get(Calendar.DATE) - 1);
                t.set(Calendar.HOUR, 11);
               
                return t.getTime();
        }
       
        private Date today1Pm() {
                Calendar t = (Calendar) today().clone();
                t.set(Calendar.AM_PM, Calendar.PM);
                t.set(Calendar.HOUR, 1);
               
                return t.getTime();
        }
       
        private Date theDayAfter3Pm() {
                Calendar t = (Calendar) today().clone();
                t.set(Calendar.DATE, t.get(Calendar.DATE) + 2);        
                t.set(Calendar.AM_PM, Calendar.PM);
                t.set(Calendar.HOUR, 3);
               
                return t.getTime();
        }

        private Date today6Pm() {
                Calendar t = (Calendar) today().clone();
                t.set(Calendar.AM_PM, Calendar.PM);
                t.set(Calendar.HOUR, 6);
               
                return t.getTime();
        }
       
        private Date nextDay9Am() {
                Calendar t = (Calendar) today().clone();
                t.set(Calendar.AM_PM, Calendar.AM);
                t.set(Calendar.DATE, t.get(Calendar.DATE) + 1);
                t.set(Calendar.HOUR, 9);
               
                return t.getTime();
        }
       
        private Date nextDay11Am() {
                Calendar t = (Calendar) today().clone();
                t.set(Calendar.AM_PM, Calendar.AM);
                t.set(Calendar.DATE, t.get(Calendar.DATE) + 1);
                t.set(Calendar.HOUR, 11);
               
                return t.getTime();
        }
       
        private Date fourDaysLater3pm() {
                Calendar t = (Calendar) today().clone();
                t.set(Calendar.AM_PM, Calendar.PM);
                t.set(Calendar.DATE, t.get(Calendar.DATE) + 4);
                t.set(Calendar.HOUR, 3);
               
                return t.getTime();
        }
       
        public ScheduleEvent getEvent() {
                return event;
        }

        public void setEvent(ScheduleEvent event) {
                this.event = event;
        }
       
        public void addEvent(ActionEvent actionEvent) {
                if(event.getId() == null)
                        eventModel.addEvent(event);
                else
                        eventModel.updateEvent(event);
               
                event = new DefaultScheduleEvent();
        }
       
        public void onEventSelect(ScheduleEntrySelectEvent selectEvent) {
                event = selectEvent.getScheduleEvent();
        }
       
        public void onDateSelect(DateSelectEvent selectEvent) {
                event = new DefaultScheduleEvent(Math.random() + "", selectEvent.getDate(), selectEvent.getDate());
        }
       
        public void onEventMove(ScheduleEntryMoveEvent event) {
                FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_INFO, "Event moved", "Day delta:" + event.getDayDelta() + ", Minute delta:" + event.getMinuteDelta());
               
                addMessage(message);
        }
       
        public void onEventResize(ScheduleEntryResizeEvent event) {
                FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_INFO, "Event resized", "Day delta:" + event.getDayDelta() + ", Minute delta:" + event.getMinuteDelta());
               
                addMessage(message);
        }
       
        private void addMessage(FacesMessage message) {
                FacesContext.getCurrentInstance().addMessage(null, message);
        }
}
